JP6792472B2 - Battery terminal - Google Patents

Description

The present invention relates to a battery terminal.

As conventional battery terminals, for example, in Patent Document 1, a battery including an annular portion, a through plate, a retaining portion, a fastening member support portion, a fastening member, a fastened member, and a pressing force conversion member. The terminals are disclosed. The annular portion is formed with a post insertion hole into which the battery post is inserted and a slit. The through plate is arranged along the width direction so as to penetrate from one end of the annular portion to the other end of the annular portion with a slit in between. The retaining portion is provided at one end of the through plate to prevent the through plate from coming out of the annular portion. The fastening member support portion is provided at the other end of the through plate. The fastening member is rotatably supported by the fastening member support portion in the axial direction. The member to be fastened is screwed with the fastening member. The pressing force conversion member is arranged in contact with the annular portion from the other end side of the through plate, and is generated in the axial direction between the fastening member and the fastening member as the fastening member rotates around the axial direction. The tightening force of the ring portion is converted into a pressing force in the width direction that presses the annular portion in the direction of reducing the interval between the slits of the annular portion.

Japanese Unexamined Patent Publication No. 2016-149256

By the way, the battery terminal described in Patent Document 1 described above has room for further improvement in terms of fastening to a battery post, for example.

The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a battery terminal that can be properly fastened to a battery post.

In order to achieve the above object, the battery terminal according to the present invention has a post insertion hole into which the battery post is inserted, a main body portion having a slit continuous with the post insertion hole, and an axial direction of the battery post. It is arranged so as to extend from one end side of the main body portion to the other end side of the main body portion across the slit along the tightening direction which is the direction intersecting with the slit. A screw hole in which a contact portion abutting with the main body portion is provided on one end side in the tightening direction and a screw groove is formed penetrating in the axial direction on the other end side in the tightening direction, and A through member provided with a tapered end portion on which a first tapered surface is formed, a fastening member that is screwed into the screw hole and moves along the axial direction with rotation around the axial direction, and the fastening member. The fastening member can move along the axial direction as it moves along the axial direction, and can move relative to the penetrating member along the tightening direction while abutting on the first tapered surface. The axial fastening that occurs between the fastening member and the penetrating member as the fastening member abuts on the other end side of the main body and rotates around the axial direction of the fastening member. Pressurizing force conversion that converts the force into a pressing force in the tightening direction that presses the main body portion in a direction that reduces the distance between the slits of the main body portion along the tightening direction with the contact portion. The post insertion hole and the slit are continuous along the opposite direction intersecting the axial direction and the tightening direction, and the pressing force conversion member is the fastening member along the axial direction. A base portion through which the shaft portion is inserted, and a pair formed so as to project from the base portion along the axial direction and facing the opposite direction, respectively, with the main body portion and the first tapered surface, respectively. It has a pair of upright portions that can be abutted, and one of the pair of upright portions is located on the post insertion hole side with respect to the opposite direction from the other and is in contact with the main body portion. The other is located on the side opposite to the post insertion hole side with respect to the opposite direction from the one, and protrudes from the first contact portion toward the main body portion to come into contact with the main body portion. It is characterized by having two contact portions.

Further, in the battery terminal, the first tapered surface is provided as a pair on both sides in the facing direction at the tapered end portion, and the pair of upright portions are each the main body portion with respect to the tightening direction. The surface opposite to the surface on the side that abuts with the first tapered surface has a second tapered surface that abuts on the first tapered surface, and the first tapered surface and the second tapered surface are said to be around the axial direction. When the pressing force conversion member together with the fastening member approaches the penetrating member side along the axial direction with the rotation of the fastening member, the axial direction generated between the fastening member and the penetrating member. The fastening force is formed so as to be inclined in a direction of converting the fastening force into a pressing force in the tightening direction that presses the main body portion between the abutting portion and the pressing force conversion member along the tightening direction. In the first contact portion, the contact surface with the main body portion is formed along the axial direction, and in the second contact portion, the contact surface with the main body portion has an inclination of the second tapered surface. A third tapered surface that is inclined in the direction opposite to the direction can be formed.

Further, in the battery terminal, the main body portion is formed by an upper plate and a lower plate facing each other along the axial direction, and the other of the pair of upright portions abuts on the upper plate. It may have a second contact portion and the second contact portion that contacts the lower plate.

In the battery terminal according to the present invention, with the battery post inserted into the post insertion hole formed in the main body portion, the main body portion is brought into contact with the battery post by the action of the penetrating member, the fastening member, and the pressing force conversion member. Can be concluded. That is, in the battery terminal, the pressing force conversion member moves along the axial direction as the fastening member moves along the axial direction, and the pressing force converting member comes into contact with the first tapered surface of the penetrating member. While moving relative to the penetrating member along the tightening direction. With this configuration, the battery terminal presses the main body with the axial fastening force generated between the fastening member and the penetrating member by the action of the pressing force conversion member so as to reduce the slit spacing. It can be converted into a pressing force of. As a result, the battery terminal can fasten the main body to the battery post. Here, in the pressing force conversion member, the battery terminal has the first contact portion located on the post insertion hole side, while the second contact portion is located on the side opposite to the post insertion hole side from the first contact portion. To do. In this positional relationship, the battery terminal is provided so that the second contact portion projects toward the main body portion from the first contact portion located on the post insertion hole side. With this configuration, for example, even if the main body of the battery terminal is deformed from the post insertion hole side due to the pressing force in the tightening direction, the first contact portion and the second contact portion are in contact with the main body, respectively. It is possible to apply pressing force in the tightening direction properly in contact. As a result, the battery terminal can appropriately apply a pressing force in the tightening direction to the main body and press the battery terminal, so that the battery terminal can be properly fastened to the battery post.

FIG. 1 is a partial perspective view showing a battery terminal according to an embodiment and a schematic configuration of a battery. FIG. 2 is a partially exploded perspective view showing the battery terminals according to the embodiment and the schematic configuration of the battery. FIG. 3 is a perspective view showing a schematic configuration of a battery terminal according to an embodiment. FIG. 4 is an exploded perspective view showing a schematic configuration of the battery terminal according to the embodiment. FIG. 5 is a perspective view showing a schematic configuration of the bracket of the battery terminal according to the embodiment. FIG. 6 is a perspective view showing a schematic configuration of the bracket of the battery terminal according to the embodiment. FIG. 7 is a side view of one of the brackets of the battery terminal according to the embodiment. FIG. 8 is a side view of the other side of the bracket of the battery terminal according to the embodiment. FIG. 9 is a front view of the battery terminal according to the embodiment as viewed from one side in the second width direction. FIG. 10 is a partial cross-sectional view including the bracket of the battery terminal according to the embodiment.

Hereinafter, embodiments according to the present invention will be described in detail with reference to the drawings. The present invention is not limited to this embodiment. In addition, the components in the following embodiments include those that can be easily replaced by those skilled in the art, or those that are substantially the same.

[Embodiment]

The battery terminal 1 according to the present embodiment shown in FIGS. 1 to 4 is assembled to the battery post 51 of the battery 50. The battery terminal 1 is a component for electrically connecting the battery 50 and the connection terminal 52 or the like by being assembled to the battery post 51. The battery 50 is mounted on a vehicle or the like as a power storage device. The battery 50 is located on one surface of the battery housing 53 that houses the battery fluid and various components constituting the battery 50, typically on a surface that is located on the upper side in the vertical direction when the battery 50 is mounted on the vehicle. The battery post 51 is erected. The battery post 51 projects from the upper surface of the battery housing 53 in the vertical direction toward the upper side in the vertical direction. The battery post 51 is formed in a columnar shape, or more specifically, in a columnar shape (or cylindrical shape) tapered so that the diameter decreases toward the tip side. That is, the battery post 51 has a tapered shape in which the outer diameter of the tip is smaller than the outer diameter of the base end. The battery post 51 is arranged so that the central axis C is along the vertical direction. The battery terminal 1 is fastened to the battery post 51 configured in this way. Further, the connection terminal 52 is a connection partner member provided at the end of the electric wire 54 on the main body side of the vehicle or the like on which the battery 50 is mounted.

In the following description, the direction along the central axis C of the battery post 51 is referred to as the axial direction X. Further, here, for the sake of clarity, one of the two directions orthogonal to the axial direction X is referred to as the first width direction Y, and the other is referred to as the second width direction Z for convenience. The first width direction Y and the second width direction Z correspond to the intersecting directions intersecting the axial direction X. The first width direction Y corresponds to the tightening direction of the main body portion 20 by the tightening portion 30 described later. The second width direction Z corresponds to the opposite direction of the pair of upright portions 33b described later. The axial direction X, the first width direction Y, and the second width direction Z intersect each other, and here they are orthogonal to each other. Unless otherwise specified, each direction used in the following description shall represent a direction in which each part is assembled to each other.

Specifically, the battery terminal 1 includes a stud bolt 10, a main body portion 20, and a tightening portion 30.

The stud bolt 10 is configured to include a shaft portion 10a and a bolt head portion 10b (particularly see FIG. 4), and these are integrally formed of a conductive metal or the like. The shaft portion 10a is a portion to which the connection terminal 52 is connected. The shaft portion 10a is formed in a columnar shape and has a screw groove formed on the outer peripheral surface. The bolt head 10b is a base portion provided at one end of the shaft portion 10a. The bolt head 10b is a pedestal portion on which the shaft portion 10a is erected. The bolt head 10b is formed as a portion having a diameter larger than that of the shaft portion 10a. Here, the bolt head 10b is formed in a substantially rectangular shape.

The main body portion 20 includes a post fastening portion 21 and a bolt holding portion 22. The post fastening portion 21 is a portion to be fastened to the battery post 51. The bolt holding portion 22 is a portion connected to the post fastening portion 21 adjacent to the post fastening portion 21 in the second width direction Z to hold the stud bolt 10. The main body 20 includes, for example, a pair of annular portions 20a and 20b forming the post fastening portion 21, and a pair of holding plate-shaped portions 20c forming the bolt holding portion 22 by press bending of a conductive metal plate or the like. 20d and the bending connecting portion 20e are integrally formed.

The pair of annular portions 20a and 20b are formed in a substantially rectangular annular shape. Post insertion holes 20f and 20g and slits 20h and 20i are formed in the pair of annular portions 20a and 20b, respectively. The post insertion holes 20f and 20g are substantially circular holes into which the battery post 51 is inserted. The slits 20h and 20i are gaps continuous with the post insertion holes 20f and 20g. The post insertion holes 20f and 20g and the slits 20h and 20i are continuous along the second width direction Z.

The pair of holding plate-shaped portions 20c and 20d are formed in a substantially rectangular shape, and a bolt insertion hole 20j is formed on the holding plate-shaped portion 20c side. The bolt insertion hole 20j is a hole into which the shaft portion 10a of the stud bolt 10 is inserted and is formed in a substantially circular shape. The annular portion 20a and the holding plate-shaped portion 20c are integrally formed so as to be continuous to form the upper plate 20A. The annular portion 20b and the holding plate-shaped portion 20d are integrally formed so as to be continuous to form the lower plate 20B.

The annular portion 20a and the annular portion 20b are integrally formed so that the ends on the opposite sides of the holding plate-shaped portions 20c and 20d, respectively, are continuous via the bending connecting portion 20e. Will be done. That is, the upper plate 20A and the lower plate 20B are connected by the bending connecting portion 20e, and are integrally formed so as to be continuous via the bending connecting portion 20e. As a result, the main body portion 20 is formed in a U-shaped folded state with the bent connecting portion 20e interposed therebetween, and the annular portion 20a, the holding plate-shaped portion 20c, the annular portion 20b, and the holding plate-shaped portion 20d are shafts. It is formed so as to face the direction X and be laminated in a plate shape substantially parallel to each other. That is, according to this configuration, the main body portion 20 is formed by the upper plate 20A and the lower plate 20B stacked vertically so as to face each other along the axial direction X, and the upper plate 20A and the lower plate 20B are respectively formed. The post insertion holes 20f and 20g and the slits 20h and 20i described above are formed.

Here, the state of being laminated vertically means that the battery terminals 1 are typically laminated along the axial direction X of the battery post 51 in a state of being assembled to the battery post 51. Equivalent to. Further, the stacking direction is typically a direction along the axial direction X in a state where the battery terminal 1 is assembled to the battery post 51, and here, the side where the shaft portion 10a of the stud bolt 10 protrudes is laminated. The upper side in the direction and the opposite side are the lower side in the stacking direction. Further, the upper side in the stacking direction corresponds to the tip end side of the battery post 51, and the lower side in the stacking direction corresponds to the base end side of the battery post 51. Here, in the main body portion 20, the annular portion 20a and the holding plate-shaped portion 20c are on the upper side in the stacking direction, and the annular portion 20b and the holding plate-shaped portion 20d are on the lower side in the stacking direction. That is, in the main body 20, the upper plate 20A is on the upper side in the stacking direction, and the lower plate 20B is on the lower side in the stacking direction.

Specifically, the pair of annular portions 20a and 20b are vertically laminated via the bending connecting portion 20e so that the post insertion hole 20f and the post insertion hole 20g face each other in the stacking direction. The post insertion hole 20f and the post insertion hole 20g are formed. The inner peripheral wall surface of the post insertion hole 20f is formed by folding the sheet metal upward in the stacking direction. The inner peripheral wall surface of the post insertion hole 20g is formed by folding back the sheet metal downward in the stacking direction. The post insertion hole 20f and the post insertion hole 20g each have a taper on the inner peripheral wall surface corresponding to the taper of the battery post 51 described above. Here, the post insertion hole 20f and the post insertion hole 20g have the minimum inner diameter on the side where the shaft portion 10a of the stud bolt 10 protrudes, that is, the post insertion hole 20f side, and the inner diameter on the opposite side of the post insertion hole 20g side. Is the maximum. The inner peripheral surfaces of the post insertion holes 20f and the post insertion holes 20g come into contact with the battery posts 51 in a state where the battery posts 51 are inserted.

Further, the pair of annular portions 20a and 20b are vertically laminated via the bending connecting portion 20e, and the slits 20h and 20i are arranged so that the slits 20h and the slits 20i face each other in the stacking direction. It is formed. The slits 20h and 20i are continuous at the bending connecting portion 20e, and extend from the bending connecting portion 20e to the post insertion hole 20f and the post insertion hole 20g in the bending connecting portion 20e and the annular portions 20a and 20b as a whole. ing. In other words, the slits 20h and 20i are formed so as to extend from the post insertion holes 20f and 20g to the bending connecting portion 20e so as to divide a part of the annular portions 20a and 20b. Further, the pair of annular portions 20a and 20b form a tightening end portion 20k in which the portion between the post insertion holes 20f and 20g and the bending connecting portion 20e is tightened by the tightening portion 30 described later. The slits 20h and 20i penetrate the tightening end portion 20k along the second width direction Z from the post insertion holes 20f and 20g to the bending connecting portion 20e. The tightening end portions 20k are formed with substantially rectangular notches 20l and 20m at both end portions in the first width direction Y, respectively, to which a part of the tightening portion 30 is fitted. The cutout portions 20l and 20m are formed over both the annular portion 20a (upper plate 20A) and the annular portion 20b (lower plate 20B), respectively. Further, in the tightening end portion 20k, a guide recess 20n (particularly see FIG. 4) formed in a semicircular shape is further formed in the notch portion 20m. The guide recesses 20n are formed in both the annular portion 20a (upper plate 20A) and the annular portion 20b (lower plate 20B), respectively. Further, the tightening end portion 20k is further formed with a regulating protrusion 20o (particularly see FIG. 4) adjacent to the notch portion 20m. Each of the regulating protrusions 20o positions a part of the tightening portion 30 with respect to the second width direction Z. The regulation protrusion 20o is formed on both the annular portion 20a (upper plate 20A) and the annular portion 20b (lower plate 20B), respectively. The regulation protrusion 20o is formed adjacent to the notch 20m on the side opposite to the bending connecting portion 20e side of the notch 20m in the second width direction Z. The regulation protrusion 20o is formed so as to protrude along the first width direction Y. From a different point of view, the regulation protrusion 20o is formed so as to protrude along the first width direction Y to form the notch 20m.

The pair of holding plate-shaped portions 20c and 20d are bent in a state where the shaft portion 10a of the stud bolt 10 is inserted into the bolt insertion hole 20j in advance before the bending process, so that the pair of holding plate-shaped portions 20c and 20d are bent through the bending connecting portion 20e. The stud bolt 10 is held in a state of being stacked vertically. Here, as described above, the holding plate-shaped portion 20c constitutes the upper plate 20A in which the bolt insertion hole 20j is formed. The bolt insertion hole 20j is a through hole through which the shaft portion 10a of the stud bolt 10 penetrates. On the other hand, the holding plate-shaped portion 20d holds the bolt head 10b of the stud bolt 10 between the holding plate-shaped portion 20c constituting the upper plate 20A and the holding plate-shaped portion 20c facing the stacking direction (axial direction X). The lower plate 20B is configured. That is, the pair of holding plate-shaped portions 20c and the holding plate-shaped portions 20d are laminated so as to face each other and hold the bolt head portion 10b between them. In other words, the bolt holding portion 22 has a holding plate-shaped portion 20c and a holding plate-shaped portion 20d facing each other along the axial direction X, and the bolt head 10b of the stud bolt 10 is oriented with respect to the axial direction X. It is sandwiched and held between the holding plate-shaped portion 20c and the holding plate-shaped portion 20d.

The stud bolt 10 is exposed so that the shaft portion 10a protrudes from the bolt insertion hole 20j along the axial direction X while being held between the holding plate-shaped portion 20c and the holding plate-shaped portion 20d. .. In the stud bolt 10, the connection terminal 52 is electrically connected to the shaft portion 10a exposed from the bolt insertion hole 20j. In the stud bolt 10, the shaft portion 10a is inserted into the fastening hole 52a of the connection terminal 52, and the nut 55 is screwed into the shaft portion 10a to fasten the connection terminal 52 to the shaft portion 10a. In the bolt holding portion 22 described above, the holding plate-shaped portion 20c constituting the upper plate 20A is formed by screwing the nut 55 into the shaft portion 10a of the stud bolt 10 so that the nut 55 and the bolt head 10b of the stud bolt 10 are screwed. It is sandwiched between and the connection terminal 52.

The tightening portion 30 fastens the main body portion 20 to the battery post 51 with the battery post 51 inserted in the post insertion holes 20f and 20 g. The tightening portion 30 abuts on the pair of annular portions 20a and 20b of the main body portion 20 from both sides in the first width direction (tightening direction) Y, and tightens the tightening end portions 20k of the annular portions 20a and 20b. As a result, the tightening portion 30 fastens the main body portion 20 to the battery post 51. The tightening portion 30 includes a plate nut 31 as a penetrating member, a fastening bolt 32 as a fastening member, and a bracket 33 as a pressing force conversion member. The tightening portion 30 of the present embodiment is of a form in which the fastening bolt 32 is tightened along the axial direction X when the battery terminal 1 is fastened to the battery post 51. In this case, the tightening portion 30 applies the fastening force F1 (see FIG. 9 described later) generated by the fastening bolt 32 in the direction along the axial direction X to the pressing force F2 (see FIG. 9 described later) in the first width direction Y. ). Then, the tightening portion 30 fastens the main body portion 20 to the battery post 51 by pressing the portion where the battery post 51 is inserted at the battery terminal 1 by the pressing force F2.

Specifically, the plate nut 31 sandwiches slits 20h and 20i from one end side of the annular portions 20a and 20b of the main body portion 20 along the first width direction Y, and sandwiches the slits 20h and 20i from the other end of the annular portions 20a and 20b of the main body portion 20. It is a member that extends to the side and is arranged. As described above, the first width direction Y is a direction orthogonal to (intersects) the axial direction X along the central axis C of the battery post 51, and the slits 20h formed in the annular portions 20a and 20b, Corresponds to the direction across 20i. The first width direction Y typically corresponds to the tightening direction in which the annular portions 20a and 20b are tightened by the tightening portion 30 when the annular portions 20a and 20b are fastened to the battery post 51.

More specifically, the plate nut 31 includes a plate-shaped portion 31a, a contact portion (plate nut side contact portion) 31b, a screw hole 31c, a taper forming end portion 31d, and a first tapered surface 31e. It is configured to have, and these are integrally formed of a conductive metal or the like. The plate-shaped portion 31a is a main body portion of the plate nut 31, and is formed in a substantially rectangular plate shape. The plate-shaped portion 31a extends from one end side of the annular portions 20a and 20b along the first width direction Y to the other end side of the annular portions 20a and 20b with the slits 20h and 20i in between, and the annular portions 20a and 20b. It is the part that is placed in. The contact portion 31b is provided on one end side of the plate-shaped portion 31a in the first width direction Y, and is a portion that comes into contact with the annular portions 20a and 20b of the main body portion 20, here, the tightening end portion 20k. Further, the contact portion 31b is assembled to the main body portion 20 so that the plate-shaped portion 31a penetrates from one end side to the other end side of the annular portions 20a and 20b along the first width direction Y. It is provided at an end of the plate-shaped portion 31a located on the cutout portion 20l side of the main body portion 20. The contact portion 31b is integrally formed with the plate-shaped portion 31a. Here, the contact portion 31b is formed in a substantially rectangular plate shape. The contact portion 31b is fitted with the notch portion 20l formed in the tightening end portion 20k in a state where the plate nut 31 is assembled to the main body portion 20, and is housed and positioned in the notch portion 20l. The contact portion 31b comes into contact with the tightening end portion 20k in a state of being housed in the notch portion 20l and positioned. The screw hole 31c is formed by penetrating the plate-shaped portion 31a in the axial direction X at the other end side of the plate-shaped portion 31a in the first width direction Y, that is, the end portion opposite to the contact portion 31b. It is a part. A screw groove is formed on the inner peripheral surface of the screw hole 31c, and the fastening bolt 32 is formed so as to be screwable. The tapered end portion 31d is provided at the other end side of the plate-shaped portion 31a in the first width direction Y, that is, the end portion on the side where the screw hole 31c is formed, and the portion where the first tapered surface 31e is formed. Is. Further, the tapered end portion 31d is assembled to the main body portion 20 so that the plate-shaped portion 31a penetrates from one end side to the other end side of the annular portions 20a and 20b along the first width direction Y. , Is provided at an end of the plate-shaped portion 31a located on the notch portion 20 m side of the main body portion 20. The tapered end portion 31d is integrally formed with the plate-shaped portion 31a. The first tapered surface 31e is a surface that faces and abuts the second tapered surface 33e formed on the bracket 33. Here, the tapered end portion 31d is formed so as to project on both sides in the second width direction Z at the end portion of the plate-shaped portion 31a, and the first tapered surface 31e is formed on each protruding portion. That is, the first tapered surface 31e is provided on each of the tapered forming end portions 31d so as to project from both sides in the second width direction Z, and is provided in pairs on both sides in the second width direction Z. Each of the first tapered surfaces 31e is formed on both one side (upper side in the stacking direction) and the other side (lower side in the stacking direction) of the axial direction X at the tapered end portion 31d. You may. The inclination direction of the first tapered surface 31e will be described in detail later.

The plate nut 31 configured as described above is inserted between a pair of annular portions 20a and 20b in a state where the tapered end portions 31d side are vertically laminated. At this time, the plate nut 31 is inserted between the pair of annular portions 20a and 20b from the notch portion 20l side of the tightening end portion 20k on the taper forming end portion 31d side. That is, the plate nut 31 is inserted from one end side in the first width direction Y of the bent connecting portion 20e, here, from the notch portion 20l side, in a positional relationship so as to cross the slits 20h and 20i. Then, the plate nut 31 is assembled to the main body portion 20 by penetrating from one end side to the other end side of the annular portions 20a and 20b along the first width direction Y. That is, the plate nut 31 is inserted into a space portion formed so as to cross the slits 20h and 20i between a pair of annular portions 20a and 20b stacked vertically via the bending connecting portion 20e. It is assembled to the main body 20. In the state where the plate nut 31 is assembled to the main body portion 20, the contact portion 31b fits into the notch portion 20l and is housed and positioned in the notch portion 20l. Further, the plate nut 31 is located on the side opposite to the contact portion 31b with the screw hole 31c and the taper forming end portion 31d sandwiching the tightening end portion 20k in a state of being assembled to the main body portion 20. Then, in the state where the plate nut 31 is assembled to the main body portion 20, the contact portion 31b and the taper forming end portion 31d face each other in the first width direction Y. The plate nut 31 has a screw hole 31c along the axial direction X in a state of being assembled to the main body 20.

The fastening bolt 32 is a member that is screwed into the screw hole 31c formed in the plate nut 31 and moves along the axial direction X as it rotates around the axial direction X. The fastening bolt 32 is configured to have a shaft portion 32a and a bolt head portion 32b, and these are integrally formed of a conductive metal or the like. The shaft portion 32a is a penetrating portion screwed into the screw hole 31c of the plate nut 31. The shaft portion 32a is formed in a columnar shape. The shaft portion 32a has a screw groove formed on the outer peripheral surface thereof to be screwed with the screw groove of the screw hole 31c. The bolt head 32b is a pedestal portion on which the shaft portion 32a is erected. The bolt head 32b is provided integrally with the shaft portion 32a at one end of the shaft portion 32a. The bolt head 32b is formed as a portion having a diameter larger than that of the shaft portion 32a, and here, it is formed in a substantially hexagonal shape. The bolt head 32b constitutes a portion to which a fastening torque is applied by a tool or the like in order to rotate the fastening bolt 32 around the shaft portion 32a. The fastening bolt 32 moves relative to the plate nut 31 along the axial direction X by the screwing action of the screw groove as the fastening bolt 32 rotates around the axial direction X in a state of being screwed into the screw hole 31c.

The bracket 33 can move along the axial direction X as the fastening bolt 32 moves along the axial direction X, and is in contact with the first tapered surface 31e of the plate nut 31 in the first width direction Y. It is a member provided so as to be relatively movable with respect to the plate nut 31 along the plate nut 31. The bracket 33 is a member that converts the fastening force F1 along the axial direction X into the pressing force F2 along the first width direction Y. Here, the bracket 33 moves along the axial direction X as the fastening bolt 32 moves along the axial direction X in a state of being assembled to the shaft portion 32a of the fastening bolt 32. Then, the bracket 33 hits the other end side of the annular portions 20a and 20b of the main body portion 20, that is, the side where the taper forming end portion 31d of the plate nut 31 is located and the tightening end portion 20k of the annular portions 20a and 20b. In contact with each other, a pressing force F2 in the first width direction Y is generated. Further, the bracket 33 comes into contact with the annular portions 20a and 20b of the main body portion 20 on the other end side of the annular portions 20a and 20b of the main body portion 20, that is, on the notch portion 20m side. Then, the bracket 33 applies the fastening force F1 in the axial direction X generated between the fastening bolt 32 and the plate nut 31 as the fastening bolt 32 rotates around the axial direction X, to the pressing force F2 in the first width direction Y. Convert to.

More specifically, the bracket 33 includes a base portion 33a, a pair of upright portions 33b, a penetrating portion 33c, and a contact portion, as shown in FIGS. 3, 4, 5, 6, 7, and 8. It is configured to have a (bracket side contact portion) 33d, a second tapered surface 33e, and a regulating portion 33f, and these are integrally formed of a conductive metal or the like. Each part of the bracket 33 is integrally formed by, for example, press bending of a metal plate.

The base portion 33a is a portion through which the shaft portion 32a of the fastening bolt 32 is inserted along the axial direction X. The base portion 33a is formed in a substantially rectangular plate shape. The base portion 33a is formed with a penetrating portion 33c described later.

The pair of upright portions 33b are portions that are integrally formed with the base portion 33a and extend from two opposing sides of the four sides of the base portion 33a to one side in the axial direction X. The upright portions 33b are provided in pairs along the second width direction Z so as to face each other. That is, the pair of upright portions 33b are provided on each of the two sides of the base portion 33a along the first width direction Y. The pair of upright portions 33b are formed so as to project from the base portion 33a along the axial direction X. The bracket 33 is formed in a substantially U shape as a whole including the base portion 33a and each upright portion 33b. The pair of upright portions 33b are located on the post insertion holes 20f and 20g side of the other in the second width direction Z in a state where the respective parts of the battery terminals 1 are assembled to each other, in other words, the other is one. The post insertion holes 20f are located on the side opposite to the 20g side with respect to the second width direction Z. Here, when distinguishing a pair of upright portions 33b, one may be referred to as "upright portion 33ba" and the other may be referred to as "upright portion 33bb" for convenience. The upright portion 33ba is located on the other side, that is, on the post insertion hole 20f, 20g side with respect to the second width direction Z from the upright portion 33bb. The upright portion 33bb is located on the side opposite to the post insertion hole 20f and 20g side with respect to the second width direction Z from the upright portion 33ba, that is, on the bending connecting portion 20e side. Hereinafter, when it is not necessary to distinguish between the upright portion 33ba and the upright portion 33bb, the upright portion 33b may be simply referred to as the upright portion 33b. The pair of upright portions 33b can come into contact with the first tapered surface 31e of the main body portion 20 and the plate nut 31, respectively. The pair of upright portions 33b each have an abutting portion 33d that can abut the main body portion 20 and a second tapered surface 33e that can abut the first tapered surface 31e.

The through portion 33c is a through hole through which the shaft portion 32a of the fastening bolt 32 penetrates. It is formed in the base portion 33a so as to penetrate the base portion 33a in the axial direction X. The penetrating portion 33c is formed in a substantially oval shape extending along the first width direction Y. In the bracket 33, the shaft portion 32a of the fastening bolt 32 is inserted into the penetrating portion 33c along the axial direction X. As a result, the bracket 33 is assembled to the fastening bolt 32 so as to be movable along the axial direction X. Further, in the bracket 33, since the penetrating portion 33c is formed in a substantially oval shape along the first width direction Y, the fastening bolt 32 is in a state where the shaft portion 32a of the fastening bolt 32 is inserted into the penetrating portion 33c. It is configured to be relatively movable along the first width direction Y. As a result, the bracket 33 is assembled to the fastening bolt 32, and the shaft portion 32a of the fastening bolt 32 is screwed into the screw hole 31c of the plate nut 31, and the bracket 33 is screwed to the plate nut 31 via the fastening bolt 32. It is supported so as to be relatively movable along the axial direction X and the first width direction Y. The bracket 33 has each upright portion 33b in a state where the shaft portion 32a of the fastening bolt 32 is inserted into the through portion 33c and the shaft portion 32a is supported in a positional relationship screwed into the screw hole 31c of the plate nut 31. Is located closer to the plate-shaped portion 31a than the base portion 33a. Typically, in a state where the bracket 33 is assembled to the plate nut 31 via the fastening bolt 32, the base portion 33a is on the upper side in the stacking direction (vertical direction), and each upright portion 33b is on the lower side in the stacking direction (vertical direction). To position.

The contact portion 33d is a portion of the bracket 33 that comes into contact with the main body portion 20. The contact portion 33d is formed on one end surface of each upright portion 33b in the first width direction Y. More specifically, the contact portion 33d is the first contact portion 33g provided on the upright portion 33ba of the pair of upright portions 33b, and the second contact portion 33b provided on the upright portion 33bb of the pair of upright portions 33b. It is configured to include a portion 33h. That is, of the pair of upright portions 33b, the upright portion 33ba has the first contact portion 33g, and the upright portion 33bb has the second contact portion 33h. Each abutting portion 33d is an end surface of each upright portion 33b facing the tightening end portion 20k in the first width direction Y on the other end side of the annular portions 20a and 20b of the main body portion 20, that is, on the notch portion 20m side. Is formed in each. That is, each abutting portion 33d is formed on each of the upright portions 33b on the end surface on the tightening end portion 20k side in the first width direction Y, with the bracket 33 assembled to the plate nut 31 via the fastening bolt 32. Will be done.

That is, the first contact portion 33g is formed on the end surface of the upright portion 33ba on the tightening end portion 20k side in the first width direction Y. In the first contact portion 33g, the end surface of the upright portion 33ba on the tightening end portion 20k side in the first width direction Y constitutes the contact surface 33i with the main body portion 20. The contact surface 33i is formed on the upright portion 33ba on the other end side of the annular portions 20a and 20b of the main body portion 20, that is, on the notch portion 20m side and on the surface facing the tightening end portion 20k in the first width direction Y. And constitutes a surface that comes into contact with the tightening end portion 20k. The contact surface 33i is formed as a surface along the axial direction X, that is, a surface parallel to the axial direction X, at the end surface of the upright portion 33ba on the tightening end portion 20k side in the first width direction Y. Here, the first contact portion 33g has the contact surface 33i commonly in contact with the annular portion 20a constituting the upper plate 20A and the annular portion 20b forming the lower plate 20B at the tightening end portion 20k.

On the other hand, the second contact portion 33h is formed on the end surface of the upright portion 33bb on the tightening end portion 20k side in the first width direction Y. The second contact portion 33h is formed so as to project from the upright portion 33bb toward the main body portion 20 in the first width direction Y. More specifically, the second contact portion 33h is formed so as to project from the first contact portion 33g toward the main body portion 20 in the first width direction Y (see particularly FIG. 7 and the like). The second contact portion 33h of the present embodiment has a base end side contact portion 33ha that contacts the upper plate 20A of the main body portion 20 and a tip end side contact portion 33hb that contacts the lower plate 20B of the main body portion 20. Consists of including. That is, the upright portion 33bb is a base end side contact portion 33ha which is a second contact portion 33h which contacts the upper plate 20A, and a tip end side contact portion which is a second contact portion 33h which contacts the lower plate 20B. Each has 33 hb. The base end side contact portion 33ha is provided at the base end portion on the base portion 33a side in the axial direction X in the upright portion 33bb. The tip end side contact portion 33hb is provided at the tip end portion of the upright portion 33bb on the side opposite to the base portion 33a side in the axial direction X. That is, the base end side contact portion 33ha is provided on the base portion 33a side of the tip end side contact portion 33hb with respect to the axial direction X. The base end side contact portion 33ha and the tip end side contact portion 33hb are both formed so as to project from the first contact portion 33g toward the main body portion 20 in the first width direction Y, and have substantially the same shape here. It is formed. In the base end side contact portion 33ha and the tip end side contact portion 33hb, the end faces of the upright portion 33bb on the tightening end portion 20k side in the first width direction Y form the contact surface 33j with the main body portion 20, respectively. Each of the contact surfaces 33j faces the tightening end portion 20k in the first width direction Y on the other end side of the annular portions 20a and 20b of the main body portion 20, that is, on the notch portion 20m side in the upright portion 33bb, respectively. It is formed on the surface and constitutes a surface that comes into contact with the tightening end portion 20k. The contact surface 33j of the base end side contact portion 33ha comes into contact with the annular portion 20a constituting the upper plate 20A at the tightening end portion 20k. The contact surface 33j of the tip-side contact portion 33hb comes into contact with the annular portion 20b constituting the lower plate 20B at the tightening end portion 20k. Each contact surface 33j of the present embodiment is formed as a surface inclined with respect to the axial direction X at the end surface of the upright portion 33bb on the tightening end portion 20k side in the first width direction Y. Here, each of the contact surfaces 33j constitutes a third tapered surface 33k that is inclined in a direction opposite to the direction of inclination of the second tapered surface 33e, which will be described later. The inclination direction of the third tapered surface 33k will be described in detail later.

Hereinafter, when it is not necessary to distinguish between the proximal end side contact portion 33ha and the distal end side contact portion 33hb, the second contact portion 33h may be simply referred to. Further, when it is not necessary to particularly distinguish between the first contact portion 33g and the second contact portion 33h, the contact portion 33d may be simply referred to.

The bracket 33 is assembled to the plate nut 31 via the fastening bolt 32, and each contact portion 33d side is fitted with the notch portion 20m formed in the above-mentioned tightening end portion 20k, and the notch portion 20m is used. It is housed and positioned inside. In this state, the bracket 33 abuts on the abutting portion 33d side with the tightening end portions 20k of the annular portions 20a and 20b. Further, the fastening bolt 32 is provided in a guide recess 20n in which the bracket 33 is assembled and the shaft portion 32a is screwed into the screw hole 31c of the plate nut 31 and the shaft portion 32a is formed in the notch portion 20m. It is fitted and housed in the guide recess 20n for positioning.

The second tapered surface 33e is a surface that faces and abuts the first tapered surface 31e formed on the tapered end 31d of the plate nut 31 in a state where the bracket 33 is assembled to the plate nut 31 via the fastening bolt 32. Is. The second tapered surface 33e of the present embodiment faces and abuts the first tapered surface 31e. The second tapered surface 33e is formed on the other end surface of each upright portion 33b in the first width direction Y. That is, each of the second tapered surfaces 33e is on a surface of each upright portion 33b opposite to the surface of the main body portion 20 facing the tightening end portion 20k and the surface of the tightening end portion 20k facing the first width direction Y. Each is formed. That is, each of the second tapered surfaces 33e is formed on a surface opposite to each of the abutting portions 33d on the side that abuts the main body portion 20 in the first width direction Y. The bracket 33 is assembled to the plate nut 31 via the fastening bolt 32, and the portion where each second tapered surface 33e is formed, that is, each upright portion 33b is a tightening end in the first width direction Y. It is located between the portion 20k and the taper forming end portion 31d. Then, in the bracket 33, each of the second tapered surfaces 33e faces the first tapered surface 31e on the taper forming end portion 31d side and comes into contact with each other.

Then, each of the first tapered surfaces 31e and each of the second tapered surfaces 33e are opposed to each other and are in contact with each other, and are formed as surfaces inclined with respect to the axial direction X. More specifically, on each of the first tapered surfaces 31e and each second tapered surface 33e, the bracket 33 is plated along the axial direction X together with the fastening bolt 32 as the fastening bolt 32 rotates around the axial direction X. When approaching the nut 31 side, it inclines in the direction of converting the fastening force F1 into the pressing force F2. Here, the fastening force F1 is a force generated between the fastening bolt 32 and the plate nut 31 along the axial direction X. On the other hand, the pressing force F2 is applied in the first width direction Y to press the tightening end portions 20k of the annular portions 20a and 20b of the main body portion 20 between the abutting portion 31b and the bracket 33 along the first width direction Y. It is a force along. Here, each of the second tapered surfaces 33e is gradually tightened as the bracket 33 is assembled to the plate nut 31 via the fastening bolt 32 and is separated from the base 33a side along the axial direction X. It is formed as an inclined surface that approaches the portion 20k side. In other words, each of the second tapered surfaces 33e gradually narrows and tapers along the first width direction Y from the base end side (base portion 33a side) of the axial direction X toward the tip end side in each upright portion 33b. It is formed as an inclined surface such that Each of the first tapered surfaces 31e faces the second tapered surface 33e and is an inclined surface along the second tapered surface 33e in a state where the bracket 33 is assembled to the plate nut 31 via the fastening bolt 32. It is formed. That is, each of the first tapered surfaces 31e is formed as an inclined surface substantially parallel to each of the second tapered surfaces 33e in a state of being in contact with each of the second tapered surfaces 33e. With this configuration, each of the first tapered surfaces 31e and each of the second tapered surfaces 33e are formed so as to be able to maintain an appropriate contact state with each other. That is, each of the first tapered surfaces 31e has the fastening bolt 32 along the axial direction X from the side where the fastening bolt 32 and the bracket 33 are located (upper side in the stacking direction) with the plate nut 31 assembled to the main body portion 20. , It is formed as an inclined surface that gradually approaches the tightening end portion 20k side as it is separated from the bracket 33 on the opposite side (lower side in the stacking direction). In other words, each first tapered surface 31e is tapered so as to be separated from the side where the fastening bolt 32 and the bracket 33 are located along the axial direction X to the side opposite to the fastening bolt 32 and the bracket 33. It is formed as an inclined surface so that the width along the first width direction Y of the above gradually increases.

Then, in the bracket 33 described above, each third tapered surface 33k formed by the contact surface 33j of each second contact portion 33h is a surface inclined in a direction opposite to the direction of inclination of the second tapered surface 33e described above. Is formed as. Here, each third tapered surface 33k is gradually tightened as the bracket 33 is assembled to the plate nut 31 via the fastening bolt 32 and is separated from the base 33a side along the axial direction X. It is formed as an inclined surface so as to be separated from the portion 20k side. In other words, each of the third tapered surfaces 33k gradually narrows in the upright portion 33bb along the first width direction Y from the base end side (base portion 33a side) of the axial direction X toward the tip end side, and tapers. It is formed as an inclined surface. The inclination angle of each of the third tapered surfaces 33k with respect to the axial direction X is the same as the inclination angle of the second tapered surface 33e with respect to the axial direction X, and the inclination direction is reversed with respect to the first width direction Y. It is formed as an inclined surface having a symmetrical shape. Each of the second contact portions 33h is formed with each contact surface 33j as a third tapered surface 33k, so that each of the second contact portions 33h is viewed along the second width direction Z and is located on the proximal end side (base 33a side) of the axial direction X. ) Is formed in a substantially right-angled triangular shape having a base parallel to the first width direction Y (see FIGS. 7, 8 and the like).

The restricting portion 33f is a portion capable of abutting the plate nut 31 at a predetermined position with respect to the axial direction X and restricting the movement of the bracket 33 toward the plate nut 31 along the axial direction X. The regulating portion 33f is formed integrally with the base portion 33a and extends from the side located on the second tapered surface 33e side to one side of the axial direction X among the two sides of the base portion 33a along the second width direction Z. Is. The restricting portion 33f is located between the pair of upright portions 33b in the second width direction Z, and is formed so as to project to the same side as the upright portion 33b in the axial direction X.

In the battery terminal 1 configured as described above, the plate nut 31 is assembled to the main body 20, the bracket 33 is attached to the shaft portion 32a of the fastening bolt 32, and the shaft portion 32a is the screw hole of the plate nut 31. Each part is assembled to each other by screwing into 31c. In this case, when the plate nut 31 is assembled to the main body 20, the battery terminal 1 is assembled so that each first tapered surface 31e of the tapered end 31d faces upward in the stacking direction. Then, in the battery terminal 1, the bracket 33 and the fastening bolt 32 are in a positional relationship such that the bracket 33 is interposed between the bolt head 32b of the fastening bolt 32 and the plate nut 31 in the axial direction X. It is assembled to 31. In the battery terminal 1, the plate nut 31 is assembled to the main body 20, and the bracket 33 is assembled to the plate nut 31 via the fastening bolt 32, and the contact portion 31b of the plate nut 31 fits into the notch 20l. It is housed and positioned in the fitting notch 20l. Further, in this state, the battery terminal 1 is positioned so that each contact portion 33d side of the bracket 33 fits with the notch portion 20m and is housed in the notch portion 20m, and the shaft portion 32a of the fastening bolt 32 is inside the guide recess 20n. It is fitted into the guide recess 20n and housed in the guide recess 20n for positioning. Further, in the battery terminal 1, in this state, each regulation protrusion 20o comes into contact with the bracket 33 on the side opposite to the bending connecting portion 20e with respect to the bracket 33, and moves to the side opposite to the bending connecting portion 20e of the bracket 33. Regulate movement. The battery terminal 1 is assembled to the battery post 51 by inserting the battery post 51 into the post insertion holes 20f and 20g so that the shaft portion 10a of the stud bolt 10 is exposed upward in the stacking direction. Then, in the battery terminal 1, the fastening bolt 32 is on one side of the axial direction X, in this case, in the stacking direction (vertical direction), with the inner peripheral surface of the post insertion holes 20f and 20g in contact with the outer peripheral surface of the battery post 51. ) Tighten from above. As a result, the battery terminal 1 is fastened to both sides of the tightening end portions 20k of the annular portions 20a and 20b with the slits 20h and 20i sandwiched in the first width direction Y, thereby being fastened to the battery post 51.

More specifically, in the battery terminal 1, the fastening bolt 32 is rotated around the axial direction X (shaft portion 32a) by a tool or the like, and the fastening bolt 32 is screwed to the other side of the axial direction X, here. Then, it moves downward in the stacking direction (vertical direction). As the battery terminal 1 moves to the other side (lower side in the stacking direction) of the fastening bolt 32 in the axial direction X, the bracket 33 also moves to the other side in the axial direction X, and the tapered end 31d side of the plate nut 31 Approach. At this time, in the bracket 33, each contact portion 33d comes into contact with the tightening end portions 20k of the annular portions 20a and 20b, and the notch portion 20m formed in the tightening end portion 20k and each regulation protrusion portion 20o. The movement along the axial direction X is guided while the rotation around the axial direction X is regulated by. Then, in the battery terminal 1, each of the first tapered surfaces 33e formed on the bracket 33 is formed on the tapered end portion 31d of the plate nut 31 as the bracket 33 moves in the axial direction X. It abuts on 31e. In the battery terminal 1, with the second tapered surface 33e and the first tapered surface 31e in contact with each other, the bracket 33 moves along the axial direction X as the fastening bolt 32 moves further along the axial direction X. And move. Then, the battery terminal 1 moves relative to the plate nut 31 along the first width direction Y while each second tapered surface 33e of the bracket 33 abuts on each first tapered surface 31e, and the plate nut 31 Is attracted to the tapered end 31d side along the first width direction Y. As a result, as shown in FIG. 9, the battery terminal 1 applies the fastening force F1 in the axial direction X generated between the fastening bolt 32 and the plate nut 31 as the fastening bolt 32 rotates around the axial direction X. It can be converted into a pressing force F2 in the first width direction Y. Here, the pressing force F2 in the first width direction Y is the slit 20h of the main body 20 along the first width direction Y between the contact portion 31b of the plate nut 31 and each contact portion 33d of the bracket 33. It is a force that presses the tightening end portions 20k of the annular portions 20a and 20b of the main body portion 20 in the direction of reducing the interval of 20i. That is, when the bracket 33 together with the fastening bolt 32 approaches the plate nut 31 side along the axial direction X, the battery terminal 1 comes into contact with each other of the first tapered surfaces 31e. The fastening force F1 in the axial direction X generated between the fastening bolt 32 and the plate nut 31 is converted into a pressing force F2 along the first width direction Y by the action of each of the second tapered surfaces 33e. As a result, the pressing pressure F2 presses the tightening end portions 20k of the annular portions 20a and 20b in the direction of reducing the spacing between the slits 20h and 20i, and the spacing between the slits 20h and 20i is narrowed.

Therefore, the battery terminal 1 is pressed so that the distance between the slits 20h and 20i is narrowed by the pressing force F2 that is converted and generated by each of the first tapered surfaces 31e and each second tapered surface 33e as the fastening bolt 32 rotates. Will be done. As a result, the diameter of the post insertion hole 20f, 20g is reduced and the battery terminal 1 is fastened to the battery post 51 in a state where the inner peripheral surface of the post insertion hole 20f, 20g is in contact with the outer peripheral surface of the battery post 51. .. At this time, when a predetermined fastening torque is applied to the fastening bolt 32, the battery terminal 1 comes into contact with the plate nut 31 at a predetermined position with respect to the axial direction X. As a result, the battery terminal 1 is restricted from moving relative to the plate nut 31 side along the axial direction X of the bracket 33 at an appropriate position. With this configuration, the movement of the bracket 33 along the axial direction X is restricted at an appropriate position, and the fastening force F1 in the axial direction X and the pressing force F2 in the first width direction Y are appropriately large. It is regulated by.

In the battery terminal 1 of the present embodiment, the contact portion 33d that applies the pressing force F2 in the first width direction Y from the bracket 33 to the tightening end portion 20k of the main body portion 20 is the first contact portion 33g, and It is configured to include the second contact portion 33h. Here, the first contact portion 33g is located on the side of the post insertion holes 20f and 20g, while the second contact portion 33h is located on the side opposite to the post insertion holes 20f and 20g side of the first contact portion 33g. To position. In this positional relationship, the battery terminal 1 is provided so that the second contact portion 33h projects toward the main body portion 20 from the first contact portion 33g located on the post insertion hole 20f, 20g side. With this configuration, as shown in FIG. 10, for example, as shown in FIG. 10, the tightening end 20k of the main body 20 is deformed by the pressing force F2 in the first width direction Y with the post insertion holes 20f and 20g as the base points. Also, the first contact portion 33g and the second contact portion 33h can each come into contact with the main body portion 20. That is, when the tightening end portion 20k of the main body portion 20 is pressed by the pressing force F2 in the first width direction Y, the battery terminal 1 is deformed with the post insertion holes 20f and 20g side as the base point, so that the first contact portion is formed. The amount of deformation on the second contact portion 33h side tends to be relatively larger than the amount of deformation on the 33g side. At this time, the battery terminal 1 is formed so that the second contact portion 33h protrudes from the first contact portion 33g toward the main body portion 20 by the amount of protrusion L, so that the battery terminal 1 is formed on the side of the first contact portion 33g. The gap that may occur due to the difference between the amount of deformation and the amount of deformation on the side of the second contact portion 33h can be filled by the amount of protrusion L of the second contact portion 33h. In other words, in the second contact portion 33h, the amount of protrusion L toward the main body 20 side with respect to the first contact portion 33g is the amount of deformation on the first contact portion 33g side and the amount of deformation on the second contact portion 33h side. It is formed so that the amount of protrusion corresponds to the gap that can occur due to the difference between the two. As a result, in the battery terminal 1, the first contact portion 33g and the second contact portion 33h each appropriately contact the main body portion 20 and properly press the battery terminal 20 in the first width direction Y. Pressure F2 can be applied.

Then, the battery terminal 1 is electrically connected to the shaft portion 10a of the stud bolt 10 by the connection terminal 52 provided at the end of the electric wire 54.

On the other hand, in the battery terminal 1, when the fastening bolt 32 is rotated in the reverse rotation, the pressing force F2 is weakened, the intervals between the slits 20h and 20i are widened, the diameters of the post insertion holes 20f and 20g are expanded, and the battery post 51 is expanded. It becomes removable from.

The battery terminal 1 described above has a main body due to the action of the plate nut 31, the fastening bolt 32, and the bracket 33 in a state where the battery post 51 is inserted into the post insertion holes 20f and 20 g formed in the main body 20. The portion 20 can be fastened to the battery post 51. That is, in the battery terminal 1, the bracket 33 moves along the axial direction X as the fastening bolt 32 moves along the axial direction X, and the bracket 33 and the first tapered surface 31e of the plate nut 31 While abutting, it moves relative to the plate nut 31 along the first width direction Y. With this configuration, the battery terminal 1 has a main body portion such that the fastening force F1 in the axial direction X generated between the fastening bolt 32 and the plate nut 31 is reduced by the action of the bracket 33 so that the distance between the slits 20h and 20i is reduced. It can be converted into a pressing force F2 in the first width direction Y that presses 20. As a result, the battery terminal 1 can fasten the main body 20 to the battery post 51.

At this time, in the bracket 33, the first contact portion 33g is located on the post insertion hole 20f, 20g side, while the second contact portion 33h is located on the post insertion hole 20f from the first contact portion 33g. It is located on the opposite side of the 20g side. In this positional relationship, the battery terminal 1 is provided so that the second contact portion 33h projects toward the main body portion 20 from the first contact portion 33g located on the post insertion hole 20f, 20g side. With this configuration, the battery terminal 1 has, for example, the first contact portion 33 g and the second contact portion 33 g even if the main body portion 20 is deformed with the post insertion hole 20 f and the 20 g side as the base point due to the pressing force F2 in the first width direction Y. The contact portions 33h can each come into contact with the main body portion 20. As a result, the battery terminal 1 can prevent the application of the pressing force F2 to the main body portion 20 from being unevenly concentrated on the first contact portion 33g side. As a result, the battery terminal 1 omits the magnitude of the pressing force F2 applied to the main body 20 from the first contact portion 33g and the magnitude of the pressing force F2 applied to the main body 20 from the second contact portion 33h. Can be brought closer evenly. Therefore, the battery terminal 1 can appropriately apply the pressing force F2 in the first width direction Y to the main body portion 20 by the first contact portion 33g and the second contact portion 33h. As a result, the battery terminal 1 can appropriately apply the pressing force F2 in the first width direction Y to the main body 20 and press the battery terminal 1, so that the battery terminal 1 can be properly fastened to the battery post 51.

Further, the battery terminal 1 described above can be brought into contact with the first tapered surface 31e of the tapered end portion 31d via the second tapered surface 33e while maintaining an appropriate contact state. Then, the battery terminal 1 applies the fastening force F1 in the axial direction X generated between the fastening bolt 32 and the plate nut 31 by the action of each of the first tapered surfaces 31e and each second tapered surface 33e to have a first width. It can be converted into a pressing force F2 along the direction Y, and the main body 20 can be fastened to the battery post 51. In this case, in the battery terminal 1, the bracket 33 moves along the axial direction X of the fastening bolt 32 in a state where the first tapered surface 31e and the second tapered surface 33e are in contact with each other. Move along. Then, the battery terminal 1 moves the plate nut 31 relative to the plate nut 31 along the first width direction Y while each second tapered surface 33e of the bracket 33 is in contact with the first tapered surface 31e. It can be attracted to the tapered end 31d side along the first width direction Y. As a result, the battery terminal 1 converts the fastening force F1 into the pressing force F2 in the first width direction Y as the fastening bolt 32 rotates around the axial direction X, and the main body 20 is properly referred to the battery post 51. Can be concluded. The battery terminal 1 is formed so that the contact surface 33i of the first contact portion 33g with the main body portion 20 is formed in parallel along the axial direction X, while the battery terminal 1 is in contact with the main body portion 20 of the second contact portion 33h. The contact surface 33j constitutes a third tapered surface 33k that is inclined in a direction opposite to the direction of inclination of the second tapered surface 33e. That is, in the second contact portion 33h, the contact surface 33j with the main body portion 20 is formed as the third tapered surface 33k, so that the amount of protrusion toward the main body portion 20 side is shaft according to the second tapered surface 33e. It is configured to gradually change along the direction X. That is, here, the second contact portion 33h is configured so that the amount of protrusion toward the main body portion 20 side gradually increases as the amount of attraction of the plate nut 31 toward the taper-forming end portion 31d side increases. .. With this configuration, the battery terminal 1 sets the magnitude of the pressing force F2 applied from the second contact portion 33h to the taper forming end portion 31d side of the plate nut 31 as the bracket 33 moves along the axial direction X. It can be made into an appropriate size according to the attraction to. Therefore, also in this respect, the battery terminal 1 can be properly fastened to the battery post 51.

Further, in the battery terminal 1 described above, the main body 20 is formed by the upper plate 20A and the lower plate 20B, and both the upper plate 20A and the lower plate 20B are fastened to the battery post 51. , The electrical connection part can be constructed more reliably. At this time, the battery terminal 1 has a base end side contact portion 33ha in which the upright portion 33bb contacts the upper plate 20A and a tip end side contact portion 33hb in contact with the lower plate 20B as the second contact portion 33h. .. As a result, in both the upper plate 20A and the lower plate 20B constituting the main body portion 20, the battery terminal 1 is appropriately in the first width direction Y by the proximal end side contact portion 33ha and the tip end side contact portion 33hb. Since the pressing force F2 can be applied, it can be more properly fastened to the battery post 51.

The battery terminal according to the above-described embodiment of the present invention is not limited to the above-described embodiment, and various changes can be made within the range described in the claims.

In the above description, in the main body portion 20, a pair of annular portions 20a and 20b, a pair of holding plate-shaped portions 20c and 20d, and a bending connecting portion 20e are integrally formed by press bending of a conductive metal plate or the like. Although it has been described as being formed, it is not limited to this. The main body portion 20 does not include, for example, a bending connecting portion 20e, and constitutes an upper split body (annular portion 20a, holding plate-shaped portion 20c) and a lower plate 20B constituting the upper plate 20A in the axial direction X. It may have a two-layer split structure with a side split body (annular portion 20b, holding plate-shaped portion 20d), and may have a structure in which an upper split body and a lower split body formed as separate bodies are integrated. ..

Further, the main body portion 20 does not have to be composed of the upper plate 20A and the lower plate 20B, and may be composed of either one. The upright portion 33bb has been described as having a base end side contact portion 33ha that contacts the upper plate 20A and a tip end side contact portion 33hb that contacts the lower plate 20B, but the present invention is not limited to this.

In the above description, the contact surface 33j of each of the second contact portions 33h has been described as forming the third tapered surface 33k, but the present invention is not limited to this. The contact surface 33j of each of the second contact portions 33h may be formed as a parallel surface along the axial direction X as in the contact surface 33i, or may be formed in an arc shape protruding toward the main body portion 20 side. It may be formed as a curved surface. Each of the second contact portions 33h is first enough to close a gap that may occur due to the difference between the deformation amount on the first contact portion 33g side of the main body portion 20 and the deformation amount on the second contact portion 33h side. It suffices if it is formed so as to project from the contact portion 33 g toward the main body portion 20.

In the above description, the first tapered surfaces 31e are provided in pairs on both sides in the second width direction Z at the tapered end portion 31d, but the present invention is not limited to this, and one may be used. Further, in the above description, the bracket 33 has been described as being configured to include the regulating portion 33f, but the present invention is not limited to this, and the bracket 33 may be configured not to include the regulating portion 33f.

1 Battery terminal 20A Upper plate 20B Lower plate 20 Main body 20f, 20g Post insertion hole 20h, 20i Slit 30 Tightening part 31 Plate nut (penetration member)
31b Contact portion 31c Screw hole 31d Tapered forming end portion 31e First tapered surface 32 Fastening bolt (fastening member)
32a Shaft 33 bracket (pressing pressure conversion member)
33a Base 33b, 33ba, 33bb Upright 33e Second tapered surface 33g First contact 33h Second contact 33i, 33j Contact surface 33k Third tapered surface 33ha Base end side contact (second contact) )
33hb tip side contact part (second contact part)
51 Battery post F1 Fastening force F2 Pushing pressure X Axial direction Y 1st width direction (tightening direction)
Z 2nd width direction (opposing direction)

Claims (3)

A post insertion hole into which the battery post is inserted, and a main body having a slit continuous with the post insertion hole.
It extends from one end side of the main body portion to the other end side of the main body portion along the tightening direction which is a direction intersecting the axial direction of the battery post and is a direction crossing the slit. A contact portion that comes into contact with the main body portion is provided on one end side in the tightening direction, and a screw groove is formed through the other end side in the tightening direction in the axial direction. A through member provided with a screw hole and a tapered end portion on which a first tapered surface is formed, and a through member.
A fastening member that is screwed into the screw hole and moves along the axial direction as it rotates around the axial direction.
The fastening member can move along the axial direction as it moves along the axial direction, and moves relative to the penetrating member along the tightening direction while abutting against the first tapered surface. Possible to be provided, the other end side of the main body portion abuts on the main body portion, and the axial direction generated between the fastening member and the penetrating member as the fastening member rotates around the axial direction. A pressing force that converts the fastening force into a pressing force in the tightening direction that presses the main body portion in a direction that reduces the distance between the slits of the main body portion along the tightening direction with the contact portion. Equipped with a conversion member,
The post insertion hole and the slit are continuous along the opposite direction intersecting the axial direction and the tightening direction.
The pressing force conversion member is formed so as to have a base through which the shaft portion of the fastening member is inserted along the axial direction and projecting from the base portion along the axial direction and facing each other along the facing direction. Each has a pair of upright portions that are provided in pairs and are in contact with the main body and the first tapered surface.
One of the pair of upright portions has a first contact portion that is located on the post insertion hole side with respect to the opposite direction from the other and is in contact with the main body portion, and the other has the opposite direction from the other. It is characterized by having a second contact portion that is located on the side opposite to the post insertion hole side and that protrudes from the first contact portion toward the main body portion and comes into contact with the main body portion.
Battery terminal. The first tapered surfaces are provided in pairs on both sides in the facing direction at the tapered end portion.
Each of the pair of upright portions has a second tapered surface that abuts on the first tapered surface on a surface opposite to the surface that abuts on the main body portion in the tightening direction.
In the first tapered surface and the second tapered surface, the pressing force conversion member approaches the penetrating member side along the axial direction together with the fastening member as the fastening member rotates around the axial direction. At that time, the axial fastening force generated between the fastening member and the penetrating member is applied to the main body portion along the tightening direction between the contact portion and the pressing force conversion member. It is formed so as to be inclined in the direction of converting to the pressing force in the tightening direction to be pressed.
In the first contact portion, a contact surface with the main body portion is formed along the axial direction.
The second abutting portion constitutes a third tapered surface in which the abutting surface with the main body portion is inclined in a direction opposite to the inclination direction of the second tapered surface.
The battery terminal according to claim 1. The main body is formed of an upper plate and a lower plate that face each other along the axial direction.
The other of the pair of upright portions has the second contact portion that contacts the upper plate and the second contact portion that contacts the lower plate.
The battery terminal according to claim 1 or 2.

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